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Journal : Journal of Mechanical Engineering and Fabrication

Exergy analysis on a thermoelectric heat recovery device with an exhaust gas heat source from a combustion engine Sarwo Edhy Sofyan; Pratama, Yudha; Khairil, Khairil
Journal of Mechanical Engineering and Fabrication Vol. 2 No. 2 (2025): September
Publisher : Journal of Mechafa Engineering and Fabrication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64273/jmef.v2i2.25

Abstract

An internal combustion engine converts thermal energy into mechanical work with an efficiency of approximately 35–40%, depending on the engine type and operating conditions. This indicates that about 60–65% of the total energy is wasted, primarily in the form of heat loss through the cooling system, exhaust gases, and mechanical friction. One potential approach to improve engine efficiency is by recovering waste heat using a thermoelectric generator (TEG) system. This study aims to analyze the exergy performance of a thermoelectric heat recovery system that utilizes exhaust gas heat from an internal combustion engine as an energy source. The analysis focuses on the influence of engine speed variation and aluminum fin configuration on the exergy value, exergy destruction, and exergy efficiency to enhance waste heat utilization. The heat recovery system is connected to the exhaust pipe outlet, and several fin configurations are investigated: left–left-right, top–bottom, all-sided, and without fins. Tests were conducted at engine speeds of 1300, 1600, 1900, and 2200 rpm to observe variations in energy distribution and efficiency. The results indicate that the exergy value generated by the thermoelectric heat recovery system increases with higher engine speed. This finding demonstrates that the proposed system can effectively improve the thermal efficiency of internal combustion engines by converting exhaust heat into useful energy, contributing to overall energy savings and the development of more efficient energy conversion technologies.
Co-Authors Aan Marsela Abdul Hadi Abdul Wahid Abdullah Abdullah Abdullah Abdullah Achmad Fikri Sallaby Ade Pratama, Efran Fernando Adi Setiawan Adiansyah, Febri Adinda, Raissya Afdhal Afdhal Afrija, Lia Nur Agus Kurniawan, Rafiq Aji Sudarsono Akbar, Abdussalam Al Ali, Adiwijaya ALI, NURDIN Alinse , Rizka Tri Andi Hartono, Andi Andry, Ricky Zulfi Aprianto, Sandi Aptrio, Zendi Aripilahi, Edwin Arsy Tiara, Annisa Asiah MD Asiah, M.D Asnawati Asnawati Asri Gani Asyari, Ahmad Azhari Azhari Aziz, Muhammad Al Bagus Putra Wijaksana Beny Setiawan Beti , Ilayati Beti, Ila Yati Budiarti, Iis Giri Carmen Martin Catrayasa, I Wayan Cesar R. Chamorro Chairunnisa Chairunnisa Cut Nurmaliah D., Asiah M. Datu, Irka Tangke David Alvindo deri apriansyah Devi Syafrianti Devi Syafrianti, Devi Dewangga, Hoki Dewantara, Dewantara Dharma, Andree Adhi Diah Azhari Dimas Aulia Trianggana Dwipoyono, Nopri Eddy Koesoemanegara Eko Prasetyo Rohmawan Eko Suryana Elka Lukman Hakim Ernawati Ernawati Evi Salasiah A, Evi Salasiah Faisal Faisal Faisal Mustafa Fajriana, Mona Fat, Pohaja Syahrul fathur hadyan Fatimah, Dimas Mekar Ayu Fazrina Fazrina Feri Hari Utami, Feri Hari Ferry Hari Utami Fitria, Humairah Fredricka, Jhoanne Gultom, Doni Johan Hafnati Rahmatan Hamdani Hamdani Handayani, Setiaji Ayu Handayani, Sri Hani, M. Reza Hari Aspriyono Hasanuddin Hasanuddin Hasanuddin Hasanuddin Hedriansyah Hedriansyah Hendri Alamsyah Herlina Latipa Sari Hermana, M.Arafat Herri Fariadi, Herri Herrianto, David Heti Heti, Heti IDA SAFITRI Indra Kanedi Indriani, Inda Mareta Irawansyah, Riki Irwanda, A’af Teguh Ismul Huda Iswadi Iswadi Jose J. Segovia Juju Jumadi Julia Julia Julistina, Melly Juniansyah, Dedy Jusuf Wahyudi Kemala Sari Ketut Tirtayasa Khairunisak Khairunisak Kodia, Elsi Kusmajid, Kusmajid Leni Natalia Zulita Lia Astari Lianda, Deri Linia Junita, Empi Desni Luh Putu Ratna Sundari Luthfi Luthfi M Ali S Mahidin Mahidin Malia Safriani Mesterjon Mesterjon Miguel A. Villamanan Moh Syahrul A’dlom Muhammad Syukur Muhibbuddin Muhibbuddin Muhibbuddin Muhibbuddin Muhibbudin, Muhibbudin Muthoharoh, Marfuatin Ngaliman, Ngaliman Ningrum, Endah Puspa Ninosari, Devina Noviasyah, Nonong NST, Khairil Fajri Nugroho Ponco Riyanto Nur Aisyah Jalali, Nur Aisyah Nurjanah, Firda Nur’aini, Hesti Oktaria, Nenni Pebrianto, Debi Prama Wira Ginta Pratama, Yudha Putra, Adi Pramono Putra, Januar Syah Putra, Oktian Dwi Pradana Putri, Anggita Gledisyah Rahmadhan, Ihsan Rahman, Riski Rahmatan*, Hafnati Ramadani, Tri Rena Ariyanti Ridwan, Ridwan Riyanto, Defri Rizkina Manik Rohmawan, Eko Prasetiyo Rosdiana Meliana Situmorang ROSMERI, ROSMERI Roy Syahputra Rusli, Govi S Siswanto Safrida Safrida Sahputra, Ikwan Sallaby, Achmad Fikri Samingan Samingan Sania, Yuni Santoso, Feby Sapri Sapri sapri sapri Saputra, Aditia Saputra, Mahendra Saputra, Peni Saputra, Tommy Ade Sari, Venny Novita Sartika, Devi Sarwendah Ratnawati Hermanto Sarwo Edhy Sofyan sefriansyah sefriansyah Shobori, Ihsan Silviani, Yessi sono, Aji Sudar Soraya, Yenni Supardi, Reno Supriatno Supriatno Suwarni Suwarni Suwarni, Meli Syafputra, Herizal T.M.I. Mahlia Tarsani, Tarsani Toibah Umi Kalsum Tongku Nizwan Siregar Tutiliana ., Tutiliana Ulhusna, Fitrah Asma Utama, Anugrah Utama, Delta Anugrah Utami, Liza Venny Novita Sari Wahyu Hidayat Wahyudi, Aryo Sumirso Wandi, Dehar Wijaya, Hendi Raden wijaya, randi Wulandari Wulandari Wusnah Wusnah, Wusnah Yasa, Pri Yogha yono, Hari Aspri Yupianti, Yupianti Yurni Suasti Yusuf, Abdilah ZARKASI, MUHAMMAD Zulfiandry, Ricky Zulfiandy, Ricky